Blar i NTNU Open på forfatter "Treider, Thomas"
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Analysis and Testing of Ground Fault Protection Function Performance in Compensated Distribution Grids
Wagner, Pål (Master thesis, 2022)De siste årene har den globale trenden i medium-spennings distribusjonsnett jordet via resonansspole vært å erstatte luftlinjer med underjordiske kabler. Ved å gjøre dette, langsiktige økonomiske og tekniske fordeler kan ... -
Beregning av avstand til enpolte feil i direktejordet transmisjonsnett
Treider, Thomas (Master thesis, 2019)I denne oppgaven er det gjennomført testing av to ensidige og tre tosidige impedansbaserte algoritmer for beregning av avstand til enpolte feil i direktejordet transmisjonsnett. De to ensidige algoritmene som ble vurdert ... -
Earth Fault Location in Non-Radial Resonant Grounded Networks – Theory, analysis and methods
Treider, Thomas (Doctoral theses at NTNU;2024:59, Doctoral thesis, 2024)A common grounding scheme for medium voltage distribution networks and high voltage sub-transmission networks is the resonance grounding scheme. Resonant grounded networks have few interruptions and a high quality of supply, ... -
Estimating distance to transient and restriking earth faults in high-impedance grounded, ring-operated distribution networks using current ratios
Treider, Thomas; Hoidalen, Hans Kristian (Peer reviewed; Journal article, 2023)Earth faults occur frequently in distribution networks, and in resonant grounded networks they are challenging to locate precisely due to their naturally low fault current. Transient and restriking faults are more challenging ... -
Feeder selection algorithms for high-impedance faults in resonance grounded distribution systems
Sjøvold Aune, Erik (Master thesis, 2021)Høyspente distribusjonsnett med spolejording har tradisjonelt sett benyttet den stasjonære Wattmetriske algoritmen til å identifisere avgangen med jordfeil. Likevel har metoden vist seg å være utilstrekkelig, noe som har ... -
Implementation and laboratory verification of method utilizing phase and neutral quantities for detection and location of low-current earth faults in resonant grounded networks
Treider, Thomas; Høidalen, Hans Kristian (Peer reviewed; Journal article, 2023)Earth faults is a challenging fault type to locate in resonant grounded networks due to their naturally low fault current, and the problem increases with an increased fault impedance. This paper describes the detailed ... -
Polarity crossover regions of transient earth fault relays in non-radial resonant grounded networks
Treider, Thomas; Hoidalen, Hans Kristian (Peer reviewed; Journal article, 2023)Transient-based earth fault protection is widely used in all types of resonant grounded networks, and though the operating principles of the commonly available relays are usually derived from radial networks, manufacturers ... -
Proposal and Evaluation of a New Short Circuit Protection Algorithm for Active Meshed Distribution Grids
Wirgenes, Karl Fredrik Anker (Master thesis, 2023)Masket drift av det høyspente distribusjonsnettet (DN) er en måte å motvirke fremtidig spenning og overbelastning-problematikk i DN grunnet økning i last og distribuert produksjon (DG). På grunn av økonomiske og algoritmiske ... -
Two novel current-based methods for locating earth faults in unearthed ring operating MV networks
Zerihun, Tesfaye Amare; Treider, Thomas; Taxt, Henning; Nordevall, Lars B.; Haugan, Thomas Sagvold (Journal article; Peer reviewed, 2022)